Mass Balance Evaluation Of Arable Land Fill Sites In Urban And Rural Construction In The Research Increase And Decrease

Land is the human existence and the basis for social and economic development, farmland is the most basic means of production of agricultural production. Quantity and quality of arable land is related to economic development, social stability and harmony between man and nature. As social and economic development, a sharp decrease of cultivated land occupied and cultivated land area of the non-agricultural construction growing increasingly prominent contradictions, the contradiction between people increasingly acute. Although since 1999 the State has achieved ten consecutive years of balance of arable land, and also guided by the policies and regulations, but the actual operation, the additional balance of arable land cultivated land quality assessment work has been the weak link in land quality assessment Become an important research topic.Inland agricultural province, Sichuan is a large population. Arable land in Sichuan not only solve the "three rural "issue one of the major problems, but also affect the Sichuan food security and sustainable development of the national economy a major factor. Linked policy is to implement the balance of arable land is an important policy. Since 2006, Sichuan increase and decrease in the national pilot project of land since the implementation of the dynamic balance of total cultivated land has played an important role. However, arable land can not help but make the imbalance exists in some places linked to the pursuit of targets, often focus on increasing area of cultivated land, ignoring added to improve the quality of arable land, leading to supplement the low level of land quality.For scientific, reasonable and effective evaluation of projects linked to changes in land quality land, effectively protecting cultivated land, the sustainable use of land resources, and do a good job linking the project assessment, to provide reference and basis for agricultural land classification based on this study, a point of order, based in Sichuan Province Research division of agricultural land classification, land use and utilization of such other standards as the division to the standard calculation of grain production base reduction factor between do. And Daan District, Zigong City, Sichuan Province and the Da-an District, Heping Township, with more than three Zhaizhen Spring Village, Xinmin Town, Dong Village, Mountain Village, Dipu Town Sister Jiang, Salt Village, reconstruction of urban and rural construction projects and land use change linked to youth Dayi County Xia Dayi County, town and village of fog Township shrimp population, the two estuaries reconstruction of urban and rural construction land community change pilot projects linked to the empirical studies to determine the balance of arable land quality evaluation system and calculating methods, obtained additional land quality grade, To regulate the implementation of land linked to indicators of change linked to the project provide the basis for land quality assessment.